Listen to Robert Emmerich introduce The Big Apple, a hit song from 1937. Music written by Bob and performed by Tommy Dorsey's Clambake Seven with Bob on piano. Lyrics written by Buddy Bernier and sung by Edythe Wright. Audio provided by Dorothy Emmerich.

“How many lawyers does it take to screw in a lightbulb?” (lawyer joke)

The “lightbulb joke” has a version that involves lawyers:

Q: How many lawyers does it take to screw in a light bulb?
A: It depends on how many you can afford.

This joke has been cited in print since at least 1979, when it was one of the entries in a “Light Up Your Life Joke Contest” in the Village Voice (New York, NY). There are many other punchlines.

Wikipedia: Lightbulb joke
A lightbulb joke is a joke that asks how many people of a certain group are needed to change, replace, or screw in a light bulb. Generally, the punch line answer highlights a stereotype of the target group. There are numerous versions of the lightbulb joke satirizing a wide range of cultures, beliefs and occupations.

Early versions of the joke, popular in the late 1960s and the 1970s, were used to insult the intelligence of Poles ("Polish jokes").

7 November 1979, The Plain Dealer (Cleveland, OH), Mary Strassmeyer column, pg. 5-A, col. 4:
SMith (Howard Smith of the Village Voice—ed.) is also conducting a Scenes “Light Up Your Life Joke Contest,” and he and his friends have come up with these entries so far:
(...)
. How many lawyers does it take to screw in a light bulb? It depends on how many you can afford.

The answer is, of course, three: two to argue the question of whether the bulb is permanently burned-out or is only temporarily disabled by being turned-off, and the third to judge the issue, based on whether the public is currently favoring darkness or light.
-- B. Freer Freeman

Google BooksHow the Platform Professionals Keep ‘em Laughin’
By James Blakely
Houston, TX: Rich Publishing Company
1987
Pg. 191:
Q. How many lawyers does it take to screw in a light bulb?
A. How many can you afford?

1 March 1987, Minneapolis (MN) Star and Tribune, “Sweat Equity: The time you invest in home improvements pays big dividends” by Anthony Carideo, pg. 6SM:
Question: How many lawyers does it take to change a light bulb?
Answer: Two. One to mix the martinis, the other to call the electrician.

Google BooksThe Big Book of New American Humor:
The Best of the Past 25 Years
By William Novak and Moshe Waldoks
New York, NY: HarperPerennial
1990
Pg. 243:
How many lawyers does it take to screw in a light bulb?
How many can you afford?

Google News Archive
12 June 1992, Prescott (AZ) Courier, “Two lawyers are sitting at the bar...” by Larry McShane (AP), pg. 8A, col. 1:
Q: How many lawyers does it take to screw in a lightbulb?
A: How many can you afford?

A3: It only takes one lawyer to change your light bulb to his light bulb.

A4: Three. One to do it and two to sue him for malpractice.
(...)
A8: You won’t find a lawyer who can change a light bulb. Now, if you’re looking for a lawyer to screw a light bulb…

Google BooksWorld’s Best Professional Jokes
By Clifford Sawhney
New Delhi: Pustak Mahal
2004
Pg. ?:
How many lawyers does it take to change a light bulb?
“How many can you afford?”
Two. One to change it and one to keep interrupting by standing up and shouting “Objection!”
Three. One to do it and two to sue him for malpractice.

Google BooksMan Walks into a Bar:
Over 6,000 of the Most Hilarious Jokes, Funniest Gut-Busting One-Liners
By Stephen Arnott, Mike Haskins
Berkeley, CA: Ulysses Press
2007
Pg. 257:
How many lawyers does it take to change a light bulb?
How many can you afford?

Google BooksThe Mammoth Book of One-Liners
By Geoff Tibballs
London: Constable & Robinson Ltd
2012
Pg. ?:
How many lawyers does it take to change a light bulb?
How many can you afford?

Google BooksThe Art of the Perfect Defense:
Your Essential Guide to Criminal Defense in Los Angeles
By Ronald D. Hedding, Esq.
eBookIt.com
2015
Pg. 5:
Question: How many lawyers does it take to change a light bulb?
Answer: One to change it and two to keep interrupting by shouting “objection!”

Google BooksIntroduction to Paralegalism:
Perspectives, Problems and Skills
By William P. Statsky
Boston, MA: Cengage Learning
2016
Pg. 758:
Question: How many lawyers does it take to change a light bulb?
Answer. Three senior partners to contemplate the history of light; two junior partners to check for conflicts of interest; ten associates to do the research on the antitrust implications of using a particular brand, on the cost-benefits of using electric lighting versus candle light, on the health aspects of incandescent versus fluorescent bulb lighting, on the electric components hat make light bulbs work, etc. And, of course, a paralegal to insert the bulb into the socket!